Helicobia domquixote

Carvalho-Filho, Fernando Da Silva, Gorayeb, Inocêncio De Sousa, Soares, Jéssica Maria Menezes & Souza, Matheus Tavares De, 2018, Flesh flies (Diptera: Sarcophagidae) from a white-sand habitat in the Brazilian Amazon, with the description of four new species, Zootaxa 4504 (3), pp. 401-417: 407-408

publication ID

https://doi.org/10.11646/zootaxa.4504.3.6

publication LSID

lsid:zoobank.org:pub:E4F4A4FC-2AD0-4438-91D4-BB690C91A5A2

persistent identifier

http://treatment.plazi.org/id/039A5520-B33A-DB27-4EA0-F9BF28DAF889

treatment provided by

Plazi

scientific name

Helicobia domquixote
status

sp. nov.

Helicobia domquixote  sp. nov.

( Figs 17–21View FIGURES 17–21)

Type material. HOLOTYPE ♂ ( MPEGAbout MPEG), labelled as follows: BRASIL-PARÁ, BR-422 / Km 11, sul de Cametá [= south of Cametá City], Campina [= white-sand vegetation] / 2°15’12”S 49°36’12”W / Armadilha de moscas [= fly trap] / 0 7 a [= to] 15.iv.2015 [printed on white label] // BRASIL-PARÁ-Cametá / Cols: [= collectors] F.S. Carvalho Fh., Jazon / Quaresma, A. Quaresma / D. Guimarães, K. Monteiro [printed on white label; holotype in good condition, with extended terminalia].GoogleMaps 

PARATYPE. 1 ♂ ( MPEGAbout MPEG): Brazil, Pará, Cametá City , white-sand vegetation, Malaise trap, 8–21.iv.2015 [printed on white label; specimen in good condition with abdomen and terminalia cleared and preserved in glycerin in a microvial pinned beneath the specimen]  .

Diagnosis. Phallus black. Distiphallus with an ear-like, membranous, laterally-directed rounded projection ( Figs 19, 21View FIGURES 17–21). Capitis sclerotized and very long, about two-thirds of distiphallus length ( Figs 19–21View FIGURES 17–21).

Description. Male. Body length: 5.5–8.0 mm (n = 2).

Head. Fronto-orbital and parafacial plates covered with yellowish-silver microtrichia. Parafacial plate with setulae sparsely distributed along inner eye margin. Frontal vitta velvet black, with row of 8 frontal setae reaching end of pedicel. Inner vertical setae not differentiated. Outer vertical setae developed. Ocellar setae shorter than frontal setae. One pair of postocellar setae, no proclinate setae and 1 reclinate fronto-orbital seta. Pedicel reddish, first flagellomere with gray microtrichia; arista short plumose on basal 2/3. Palpus black.

Thorax. Chaetotaxy: acrostichals 0+1 (reduced), dorsocentrals 2+3, intra-alars 2+2, supra-alars 2+3, postpronotals 3, postalars 2, notopleurals 4 (2 strong primary setae and 2 short subprimary setae), anepisternals 8, katepisternals 3, merals 6, scutellum with 1 pair of basal setae, 1 pair of lateral setae, 1 pair of apical setae and 1 pair of small discal setae. Legs. Black. Fore femur with row of setae on posterodorsal and posteroventral margins. Fore tibia with 1 posteroventral seta. Mid femur with 3 median anterior setae, 1 row of posteroventral setae, 2 preapical posterior setae, and without a ctenidium on posteroventral surface. Mid tibia with 2 median anterodorsal, 4 posterodorsal, 1 median ventral, and 1 posterior setae. Hind femur with rows of anteroventral and anterodorsal setae, and 1 preapical posterodorsal seta. Hind tibia with 1 subapical anteroventral, 2 anterodorsal, 2 posterodorsal, 1 posterior and 1 posteroventral setae. Wing. Hyaline. Costal spine absent. Vein R 1 with setae on proximal half. Third costal section bare ventrally.

Abdomen. Tergites dark brown in ground color. Syntergite 1+2 and tergites 3 to 5 with a band of silvery-gray microtrichia on anterior 4/5 on dorsal and lateral surfaces; posterior margin of tergite 5 reddish. Sternites light brown, covered with black setulae and without differentiated marginal setae. Tergites 3 and 4 with one lateral seta. Tergite 4 with one pair of median marginal setae. Terminalia. Sternite 5 light brown with posterior margin Vshaped. Inner margin of arms of sternite 5 with a patch of short and thick black setae anteriorly. Syntergosternite 7+8 and epandrium orange, covered with yellowish microtrichia. Cercus shorter than epandrium in lateral view, dark brown, progressively narrowing towards apex in lateral view ( Fig. 17View FIGURES 17–21). Distal portion of cercus curved ventrally and cercal apex rounded ( Fig. 17View FIGURES 17–21). Surstylus orange, elliptical, with long setae near apical margin ( Fig. 17View FIGURES 17–21). Pregonite elongate, longer than postgonite, gently curved ventrally, with a small seta apically ( Fig. 18View FIGURES 17–21). Postgonite claw-shaped, with a strong median seta and some small pointed setae near ventral margin ( Fig. 18View FIGURES 17–21). Phallus black ( Fig. 19View FIGURES 17–21). Basiphallus small, shorter than distiphallus ( Fig. 21View FIGURES 17–21). Phallic tube saddle-shaped in lateral view ( Fig. 21View FIGURES 17–21). Juxta elongate, membranous distally ( Figs 20–21View FIGURES 17–21). Distiphallus with a membranous rounded plate, smoother and of lighter color and more transparent than rest of distiphallus, laterally-directed and perpendicular to vesica ( Figs 20–21View FIGURES 17–21). Harpes membranous, covered with many small pigmented projections ( Figs 19–20View FIGURES 17–21). Capitis very long, about two-thirds length of distiphallus, pigmented and tubular, tapering toward apex ( Figs 19–20View FIGURES 17–21). Apical fourth of capitis bifid, with tips converging in ventral view ( Fig. 20View FIGURES 17–21). Lateral styli elongate and thin ( Figs 20–21View FIGURES 17–21). Sheath of lateral styli elongate and pigmented, flattened and desclerotized distally ( Figs 20–21View FIGURES 17–21). Vesica rounded in ventral view, not visible in lateral view ( Fig. 20View FIGURES 17–21).

Female. Unknown.

Remarks. This new species differs from the others in the genus in having distiphallus with a membranous, laterally-directed rounded projection and in the shape of the capitis, which is very long (about two-thirds of distiphallus length) and sclerotized ( Figs 19–20View FIGURES 17–21). Helicobia surrubea (Wulp)  also shows a very long capitis; however, this species differs from H. domquixote  sp. nov. in having juxta very long and ventral portion of distiphallus with many pin-like membranous projections. Helicobia stellata (Wulp)  and H. penai Tibana, 1976b also have distiphallus with a laterally-directed membranous projection, but in these species this projection is glossiform ( Tibana 1976a: figs 14–15; Tibana 1976b: figs 17–18), whereas in H. domquixote  sp. nov. this projection is ear-shaped ( Fig. 21View FIGURES 17–21).

Distribution. NEOTROPICAL—Brazil (Pará).

Etymology. The specific epithet “domquixote”, which should be treated as a noun in apposition, refers to the shape of the distiphallus of this species, which resembles the spear of Miguel de Cervantes’s famous character Don Quixote.

MPEG

Museu Paraense Emilio Goeldi

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Sarcophagidae

Genus

Helicobia